CVE-2021-28373 json
The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid pass…
published 2021-03-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15056
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE: this issue only affected the git master branch for a short time. However, all end users are explicitly directed to use the git master branch in production. Semantic version numbers such as 21.03 appear to exist, but are automatically generated from the year and month. They are not releases.
Patch / fix
- tt-rss tiny_tiny_rss 2021-03-12
Exploit prediction
0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
git.tt-rss.org
/fox/tt-rss/commit/4949e1a59059d9e72ba7a98f783cec312c06c6d2
patch, third-party-advisory
-
community.tt-rss.org
/t/check-password-not-called-if-otp-is-enabled-update-asap-if-youre-using-2fa/4502
issue-tracking, patch, vendor-advisory
Sources
- CVE List CVE-2021-28373
- NVD CVE-2021-28373
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